//文件读写

// #include <stdio.h> //写
// int main()
// {
//    FILE *fp = NULL;
 
//    fp = fopen("./test.txt", "w+");
//    fprintf(fp, "This is testing for fprintf...\n");
//    fputs("This is testing for fputs...\n", fp);
//    fclose(fp);
// }

#include <stdio.h>
int main()
{
   FILE *fp = NULL;
   char buff[255];
   fp = fopen("./test.txt", "r");
   fscanf(fp, "%s", buff);
   printf("1: %s\n", buff );
   fgets(buff, 255, (FILE*)fp);
   printf("2: %s\n", buff );
   fgets(buff, 255, (FILE*)fp);
   printf("3: %s\n", buff );
   fclose(fp);
}

// size_t fread(void *ptr, size_t size_of_elements, 
//              size_t number_of_elements, FILE *a_file);
              
// size_t fwrite(const void *ptr, size_t size_of_elements, 
//              size_t number_of_elements, FILE *a_file);